OEM Lennox Draft Inducer Motor Assembly — 12M55
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The genuine OEM Lennox 12M55 draft inducer motor assembly draws combustion byproducts through the heat exchanger and vents them safely out the flue. This factory assembly pairs the motor with a precisely matched blower housing, creating the negative pressure your furnace needs to close the pressure switch and begin a safe ignition cycle. Reliable draft is essential to both furnace efficiency and safe operation.
Common failure symptoms: A worn 12M55 inducer commonly announces itself with grinding, squealing, or loud humming at startup, intermittent spinning, or complete failure to start. Since the pressure switch relies on inducer airflow, a failing motor frequently causes ignition lockouts and pressure-switch fault codes. Seized bearings and failed windings are the usual causes.
Why OEM matters: Lennox engineers each inducer assembly to produce a specific airflow and RPM tuned to the furnace's venting and safety systems. Generic replacements can under- or over-draft, triggering pressure faults or poor combustion. The OEM 12M55 guarantees the correct airflow, mounting pattern, and wiring connector for a dependable, code-compliant fit in your Lennox furnace.
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- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
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